OpenTD.UserInterface Namespace Reference Last update: 16.07.2025 Contains types to be used interactively. More... Namespacesnamespace Forms Contains forms and form controls. Classesclass StandardOutput A standard place to write output messages from OpenTD client programs. Destination defaults to an OutputDialog, but can be redirected by subscribing to the OnWrite event. class WriteEventArgs Used by the StandardOutput.OnWrite event to route StandardOutput to a custom destination. More... Detailed Description Contains types to be used interactively.